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A person who consistently attempts to ruin others lives through their persistent nagging.
Alex has been a real Sideos these last few days, I've been having a bad time whenever hes around.
by NaggyLagos August 19, 2017
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A video selfie, or a video you take of yourself, usually with a smartphone.
Let’s take a sideo of us!
by Agent CSR October 21, 2017
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